Series-Fed Microstrip Array Antenna with Circular Polarization

Table 1

Experimental results for the studied single element and array prototypes.

	3 dB axial-ratio bandwidth (MHz, %)	CP center frequency (MHz)	Peak gain (dBi)
Single element	150, 5.1	2950	7
Array A	360, 11.5	3110	12
Array B	140, 4.7	2980	12.4
Array C	410, 13.8	2965	12.3